Blackstar HT1 Series Guitar Combo Amplifier 1 Watt, all-tube, 1 x 8-Inch Combo amp Tube Complement: 1 x ECC83 (12AX7), 1 x ECC82 (12AU7) Power Tube Volume, Gain, and ISF Tone control; Overdrive switch Emulated Speaker/Headphone Output; 8 Ohm speaker output MP3/Line input